ant filtering - fail if property not set

Question

I\'ve got a ant build.xml that uses the task to copy a variety of xml files. It uses filtering to merge in properties from a bu

Answer 1

If you are looking for a specific property, you can just use the fail task with the unless attribute, e.g.:

Computer says no. You forgot to set 'my.property'!

Refer to the documentation for Ant's fail task for more detail.